我提交了以下网站进行验证，但收到此错误:
错误:
No DOCTYPE found! Checking with default XHTML 1.0 Transitional Document Type.
No DOCTYPE Declaration could be found or recognized in this document. This generally means that the document is not declaring its Document Type at the top. It can also mean that the DOCTYPE declaration contains a spelling error, or that it is not using the correct syntax.
The document was checked using a default "fallback" Document Type Definition that closely resembles “XHTML 1.0 Transitional”.
我尝试将 DOC 类型更改为:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
但是它仍然会发现错误？
如有任何建议，将不胜感激，谢谢
最佳答案
我在您的源代码顶部看不到文档类型。我添加了一个并通过 W3 checker 手动验证了代码并且它在没有警告的情况下通过了与文档类型相关的内容。
这是我添加的文档类型
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
关于css - W3C 验证 - Wordpress DOC 类型，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14296795/